P0102 2014 GMC Sierra Code - Mass or Volume Air Flow Circuit Low Input
Quick Answer
The Mass Air Flow (MAF) sensor is integrated with the multifunction intake air sensor. Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0102 2014 GMC Sierra indicates Mass or Volume Air Flow Circuit Low Input.
- Common causes
- Common causes include Dirty Air Filter, Dirty Mass Air Flow (MAF) Sensor, Intake air leaks.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0102 2014 GMC Sierra Description
The ECM applies 5 V to the MAF sensor on the MAF sensor signal circuit. The sensor uses voltage to produce a variable frequency signal based on the inlet air flow through the sensor bore. The signal varies with engine load and is displayed by the scan tool as Hertz (Hz) and grams per second (g/s). Ignition voltage and ground circuits are also supplied to the multifunction intake air sensor internal circuits for the Intake Air Temperature (IAT) sensor 2, Humidity sensor, and MAF sensor.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the MAF Sensor Signal is less than 850 Hz (about 1.43 g/s) for greater than 10 s.
What are the Possible Causes of the DTC P0102 2014 GMC Sierra?
- Dirty Air Filter
- Dirty Mass Air Flow (MAF) Sensor
- Intake air leaks
- Faulty Mass Air Flow Sensor
- Mass Air Flow Sensor harness is open or shorted
- Mass Air Flow Sensor circuit poor electrical connection
How to Fix the DTC P0102 2014 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0102 2014 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0102 2014 GMC Sierra code?
Need more information on how to fix the P0102 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0102 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0102 2014 GMC Sierra Code
1. What are the common symptoms of OBDII code P0102 in a 2014 GMC Sierra?
- Common symptoms include poor acceleration, engine stalling, rough idling, and a decrease in fuel efficiency.
2. What does the OBDII code P0102 "Mass or Volume Air Flow Circuit Low Input" mean for a 2014 GMC Sierra?
- This code indicates that the mass airflow sensor is detecting a lower-than-normal airflow into the engine, potentially causing performance issues.
3. What are the typical causes of the P0102 code in a 2014 GMC Sierra?
- Common causes include a dirty or faulty mass airflow sensor, a vacuum leak, a clogged air filter, or issues with the wiring or connectors related to the sensor.
4. How can I diagnose the P0102 code in my 2014 GMC Sierra?
- You can start by inspecting the mass airflow sensor for dirt or debris, checking for any vacuum leaks, examining the air filter, and inspecting the wiring and connectors for any damage.
5. Can I drive my 2014 GMC Sierra with the P0102 code?
- It is not recommended to drive with this code as it can lead to poor engine performance and potential damage. It's best to address the issue promptly.
6. How can I repair the P0102 code in my 2014 GMC Sierra?
- Repair options may include cleaning or replacing the mass airflow sensor, fixing any vacuum leaks, replacing the air filter, or repairing any damaged wiring or connectors.
7. Will resetting the OBDII system clear the P0102 code in my 2014 GMC Sierra?
- Resetting the system may temporarily clear the code, but it will likely return if the underlying issue is not addressed and resolved.
8. Can a DIY enthusiast fix the P0102 code in a 2014 GMC Sierra?
- Depending on your mechanical skills and tools, you may be able to address some causes of the P0102 code yourself, such as cleaning the mass airflow sensor or replacing the air filter.
9. How much does it cost to repair the P0102 code in a 2014 GMC Sierra?
- The cost of repair can vary depending on the specific cause of the code and whether you choose to address it yourself or take it to a mechanic. Costs may range from a simple sensor cleaning to a sensor replacement.
10. Is the P0102 code a common issue in 2014 GMC Sierra vehicles?
- The P0102 code related to the mass airflow sensor is a relatively common issue in various vehicles, including the 2014 GMC Sierra, and can be caused by a range of factors.
Discuss the causes and fixes for P0102 2014 GMC Sierra OBDII Code
Code P0102 2014 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
